Rose Byrne says the TSA confiscated her breast milk

The TSA isn’t playing around when it comes to the liquid limits, and new mom Rose Byrne learned that the hard way.

Byrne, 36, told Stephen Colbert about the struggles of simply leaving home with 3-month-old son Rocco (with beau Bobby Cannavale, 46). “I’ve been doing a lot of traveling, so I’ve been taking my breast milk everywhere with me,” she said in an interview on CBS’ “Late Show” this week.

Rose Byrne, Bobby Cannavale and son RoccoGC Images

Colbert then showed the audience a photo of Byrne holding a bottle of breast milk that had been confiscated by the TSA. “They take it very seriously that there could be something [harmful]. I just stand there and smile and tell them that it’s really breast milk,” she laughed.

Then, motioning to her breasts, she said, “Do I have to get them out? What do you think?”

Even short trips are a hassle, she said.

“It takes a long time to leave the house, maybe an hour, hour and 45 minutes just to get our the door,” she said. “You have to bring so many things with you — the bottle, this and that, and then you finally get out, he throws up everywhere or takes a big poo and you have to go back inside again.”